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University of Hohenheim
(27 results)-
White Papers
An Agent-Based Reverse Pricing Model for Reducing Bullwhip Effect in Supply Chains
October 29, 2007, 12:00am PDT
This paper addresses the problem of increasing order variances in multi-tier supply chains. The majority of current approaches for reducing this problem, namely the bullwhip effect, rely on...
Provided by University of Hohenheim
-
White Papers
Information Asymmetry In Buyer-Seller Negotiations And Its Impact On Effectiveness, Efficiency And Satisfaction
June 30, 2010, 12:00am PDT
Owing to the increasing need to maximize scarce resources, it is crucial for organizations to perform their negotiations effectively and efficiently. Despite the importance of effectiveness and...
Provided by University of Hohenheim
-
White Papers
Globalization And Technical Progress: Channels Of Reciprocal Interaction A Literature Review
November 2, 2008, 12:00am PDT
In the center of this paper there are two questions: 'Is it true that globalization is to a crucial degree dependant on technical innovation?' and 'Can globalization be regarded as a determinant...
Provided by University of Hohenheim
-
Whitepapers
Space Information Flow: Multiple Unicast
March 10, 2012, 12:00am PST
The multiple unicast network coding conjecture states that for multiple unicast in an undirected network, network coding is equivalent to routing. Simple and intuitive as it is, the conjecture has...
Provided by University of Hohenheim
-
Whitepapers
Enhancing TCP Performance in IP Fast Reroute
May 24, 2012, 12:00am PDT
IP Fast ReRoute (IPFRR) mechanisms are efficient in providing protection against link or router failure by invoking locally determined backup paths. But in the presence of a transient network...
Provided by University of Hohenheim
-
Whitepapers
Epidemic Forwarding in Mobile Social Networks
May 24, 2012, 12:00am PDT
Recent years have witnessed the prosperity of mobile social networks, where various information is shared among mobile users through their opportunistic contacts. To investigate efficiency of...
Provided by University of Hohenheim
-
Whitepapers
Energy Efficiency Optimization in Uplink Virtual MIMO Systems
May 24, 2012, 12:00am PDT
Energy-efficient transmission is increasing in importance for wireless system design because of limited battery power in mobile devices. In this paper, the authors consider energy efficiency...
Provided by University of Hohenheim
-
Whitepapers
Request-Peer Selection for Load-Balancing in P2P Live Streaming Systems
March 12, 2012, 12:00am PDT
Unlike Peer-To-Peer (P2P) file sharing, P2P live streaming systems have to meet real-time playback constraints, which makes it very challenging yet crucial to maximize the peer uplink bandwidth...
Provided by University of Hohenheim
-
Whitepapers
Dynamic Profit Maximization of Cognitive Mobile Virtual Network Operator
December 17, 2012, 12:00am PST
The authors study the profit maximization problem of a cognitive virtual network operator in a dynamic network environment. They consider a downlink OFDM communication system with various network...
Provided by University of Hohenheim
-
Whitepapers
Optimal PMU Placement for Wide-Area Monitoring Using Chemical Reaction Optimization
December 4, 2012, 12:00am PST
The problem of optimal placement of Phasor Measurement Units (PMUs) was first studied using graph theoretic and mathematical programming methods. However, due to the increase of renewable...
Provided by University of Hohenheim
-
Whitepapers
Optimal Lower Bound for Differentially Private Multi-Party Aggregation
July 3, 2012, 12:00am PDT
Dwork et al. [DMNS06] proposed (information theoretical) differential privacy, which has become a de-facto standard privacy notion in private data analysis. In this paper, the authors investigate...
Provided by University of Hohenheim
-
Whitepapers
LAACAD: Load BAlancing K-Area Coverage Through Autonomous Deployment in Wireless Sensor Networks
March 11, 2012, 12:00am PST
Although the problem of k-area coverage has been intensively investigated for dense Wireless Sensor Networks (WSNs), how to arrive at a k-coverage sensor deployment that optimizes certain...
Provided by University of Hohenheim
-
Whitepapers
The Performance and Locality Tradeoff in BitTorrent-Like P2P File-Sharing Systems
February 7, 2010, 12:00am PST
The recent surge of large-scale Peer-To-Peer (P2P) applications has brought huge amounts of P2P traffic, which significantly changes the Internet traffic pattern and increases the traffic-relay...
Provided by University of Hohenheim
-
Whitepapers
Socially-Optimal Multi-Hop Secondary Communication Under Arbitrary Primary User Mechanisms
January 15, 2013, 12:00am PST
In a cognitive radio system, licensed primary users can lease idle spectrum to secondary users for monetary remuneration. Secondary users acquire available spectrum for their data delivery needs,...
Provided by University of Hohenheim
-
Whitepapers
JESSICA2: A Distributed Java Virtual Machine With Transparent Thread Migration Support
January 1, 2013, 12:00am PST
A distributed Java Virtual Machine (DJVM) spanning multiple cluster nodes can provide a true parallel execution environment for multi-threaded Java applications. Most existing DJVMs suffer from...
Provided by University of Hohenheim
-
Whitepapers
FTMS: An Efficient Multicast Scheduling Algorithm for Feedback-Based Two-Stage Switch
November 21, 2012, 12:00am PST
Two major challenges in designing high-speed multicast switches are the expensive multicast switch fabric and the highly complicated central scheduler. While the recent load-balanced switch...
Provided by University of Hohenheim
-
Whitepapers
Aggregation Latency-Energy Tradeoff in Wireless Sensor Networks with Successive Interference Cancellation
September 25, 2012, 12:00am PDT
Minimizing latency and energy consumption is the prime objective of the design of data aggregation in battery-powered wireless networks. A tradeoff exists between the aggregation latency and the...
Provided by University of Hohenheim
-
Whitepapers
Latency-Minimizing Data Aggregation in Wireless Sensor Networks under Physical Interference Model
November 27, 2011, 12:00am PST
Minimizing latency is of primary importance for data aggregation which is an essential application in wireless sensor networks. Many fast data aggregation algorithms under the protocol...
Provided by University of Hohenheim
-
Whitepapers
Characterizing Locality-Aware P2P Streaming
October 12, 2011, 12:00am PDT
Peer-To-Peer (P2P) live streaming systems have been increasingly popular and successful in today's Internet, which provide large collections of video channels to millions of users at low server...
Provided by University of Hohenheim
-
Whitepapers
Dynamic Scaling of VoD Services into Hybrid Clouds with Cost Minimization and QoS Guarantee
March 29, 2012, 12:00am PDT
A large-scale Video-on-Demand (VoD) service demands huge server costs, to provision thousands of videos to millions of users with high streaming quality. As compared to the traditional practice of...
Provided by University of Hohenheim
-
Whitepapers
Utility-Maximizing Data Dissemination in Socially Selfish Cognitive Radio Networks
November 27, 2011, 12:00am PST
In cognitive radio networks, the occupation patterns of the primary users can be very dynamic, which makes optimization (e.g., utility maximization) of data dissemination among secondary users...
Provided by University of Hohenheim
-
Whitepapers
SMS: Collaborative Streaming in Mobile Social Networks
February 24, 2011, 12:00am PST
Mobile social applications have emerged in recent years. They explore social connections among mobile users in a variety of novel scenarios, including friend finding, message routing and content...
Provided by University of Hohenheim
-
Whitepapers
A Spatial Publish Subscribe Overlay for Massively Multiuser Virtual Environments
July 8, 2010, 12:00am PDT
Peer-To-Peer (P2P) architectures have become popular for designing scalable Virtual Environments (VEs) in recent years. However, one question that remains is whether a single overlay can be...
Provided by University of Hohenheim
-
Whitepapers
Evaluation of Next Generation Sequencing Software in Mapping and Assembly
March 12, 2013, 12:00am PDT
Next-generation high-throughput DNA sequencing technologies have advanced progressively in sequence-based genomic research and novel biological applications with the promise of sequencing DNA at...
Provided by University of Hohenheim
-
Whitepapers
Dynamic Programming Based Algorithms for Set Multicover and Multiset Multicover Problems
February 12, 2010, 12:00am PST
Given a universe N containing n elements and a collection of multisets or sets over N, the Multi-Set Multi-Cover (MSMC) problem or the Set Multi-Cover (SMC) problem is to cover all elements at...
Provided by University of Hohenheim
-
Whitepapers
VSkyConf: Cloud-Assisted Multi-Party Mobile Video Conferencing
March 25, 2013, 12:00am PDT
As an important application in today's busy world, mobile video conferencing facilitates people's virtual face-to-face communication with friends, families and colleagues, via their mobile devices...
Provided by University of Hohenheim
-
Whitepapers
Routing for Security in Networks with Adversarial Nodes
March 1, 2013, 12:00am PST
The authors consider the problem of secure unicast transmission between two nodes in a directed graph, where an adversary eavesdrops/jams a subset of nodes. This adversarial setting is in contrast...
Provided by University of Hohenheim
-
Whitepapers
Routing for Security in Networks with Adversarial Nodes
March 1, 2013, 12:00am PST
The authors consider the problem of secure unicast transmission between two nodes in a directed graph, where an adversary eavesdrops/jams a subset of nodes. This adversarial setting is in contrast...
Provided by University of Hohenheim
-
Whitepapers
VSkyConf: Cloud-Assisted Multi-Party Mobile Video Conferencing
March 25, 2013, 12:00am PDT
As an important application in today's busy world, mobile video conferencing facilitates people's virtual face-to-face communication with friends, families and colleagues, via their mobile devices...
Provided by University of Hohenheim
-
Whitepapers
Dynamic Programming Based Algorithms for Set Multicover and Multiset Multicover Problems
February 12, 2010, 12:00am PST
Given a universe N containing n elements and a collection of multisets or sets over N, the Multi-Set Multi-Cover (MSMC) problem or the Set Multi-Cover (SMC) problem is to cover all elements at...
Provided by University of Hohenheim
-
Whitepapers
Evaluation of Next Generation Sequencing Software in Mapping and Assembly
March 12, 2013, 12:00am PDT
Next-generation high-throughput DNA sequencing technologies have advanced progressively in sequence-based genomic research and novel biological applications with the promise of sequencing DNA at...
Provided by University of Hohenheim
-
Whitepapers
A Spatial Publish Subscribe Overlay for Massively Multiuser Virtual Environments
July 8, 2010, 12:00am PDT
Peer-To-Peer (P2P) architectures have become popular for designing scalable Virtual Environments (VEs) in recent years. However, one question that remains is whether a single overlay can be...
Provided by University of Hohenheim
-
Whitepapers
SMS: Collaborative Streaming in Mobile Social Networks
February 24, 2011, 12:00am PST
Mobile social applications have emerged in recent years. They explore social connections among mobile users in a variety of novel scenarios, including friend finding, message routing and content...
Provided by University of Hohenheim
-
Whitepapers
Utility-Maximizing Data Dissemination in Socially Selfish Cognitive Radio Networks
November 27, 2011, 12:00am PST
In cognitive radio networks, the occupation patterns of the primary users can be very dynamic, which makes optimization (e.g., utility maximization) of data dissemination among secondary users...
Provided by University of Hohenheim
-
Whitepapers
Dynamic Scaling of VoD Services into Hybrid Clouds with Cost Minimization and QoS Guarantee
March 29, 2012, 12:00am PDT
A large-scale Video-on-Demand (VoD) service demands huge server costs, to provision thousands of videos to millions of users with high streaming quality. As compared to the traditional practice of...
Provided by University of Hohenheim
-
Whitepapers
Characterizing Locality-Aware P2P Streaming
October 12, 2011, 12:00am PDT
Peer-To-Peer (P2P) live streaming systems have been increasingly popular and successful in today's Internet, which provide large collections of video channels to millions of users at low server...
Provided by University of Hohenheim
-
Whitepapers
Latency-Minimizing Data Aggregation in Wireless Sensor Networks under Physical Interference Model
November 27, 2011, 12:00am PST
Minimizing latency is of primary importance for data aggregation which is an essential application in wireless sensor networks. Many fast data aggregation algorithms under the protocol...
Provided by University of Hohenheim
-
Whitepapers
Aggregation Latency-Energy Tradeoff in Wireless Sensor Networks with Successive Interference Cancellation
September 25, 2012, 12:00am PDT
Minimizing latency and energy consumption is the prime objective of the design of data aggregation in battery-powered wireless networks. A tradeoff exists between the aggregation latency and the...
Provided by University of Hohenheim
-
Whitepapers
FTMS: An Efficient Multicast Scheduling Algorithm for Feedback-Based Two-Stage Switch
November 21, 2012, 12:00am PST
Two major challenges in designing high-speed multicast switches are the expensive multicast switch fabric and the highly complicated central scheduler. While the recent load-balanced switch...
Provided by University of Hohenheim
-
Whitepapers
JESSICA2: A Distributed Java Virtual Machine With Transparent Thread Migration Support
January 1, 2013, 12:00am PST
A distributed Java Virtual Machine (DJVM) spanning multiple cluster nodes can provide a true parallel execution environment for multi-threaded Java applications. Most existing DJVMs suffer from...
Provided by University of Hohenheim
-
Whitepapers
Socially-Optimal Multi-Hop Secondary Communication Under Arbitrary Primary User Mechanisms
January 15, 2013, 12:00am PST
In a cognitive radio system, licensed primary users can lease idle spectrum to secondary users for monetary remuneration. Secondary users acquire available spectrum for their data delivery needs,...
Provided by University of Hohenheim
-
Whitepapers
The Performance and Locality Tradeoff in BitTorrent-Like P2P File-Sharing Systems
February 7, 2010, 12:00am PST
The recent surge of large-scale Peer-To-Peer (P2P) applications has brought huge amounts of P2P traffic, which significantly changes the Internet traffic pattern and increases the traffic-relay...
Provided by University of Hohenheim
-
Whitepapers
LAACAD: Load BAlancing K-Area Coverage Through Autonomous Deployment in Wireless Sensor Networks
March 11, 2012, 12:00am PST
Although the problem of k-area coverage has been intensively investigated for dense Wireless Sensor Networks (WSNs), how to arrive at a k-coverage sensor deployment that optimizes certain...
Provided by University of Hohenheim
-
Whitepapers
Optimal Lower Bound for Differentially Private Multi-Party Aggregation
July 3, 2012, 12:00am PDT
Dwork et al. [DMNS06] proposed (information theoretical) differential privacy, which has become a de-facto standard privacy notion in private data analysis. In this paper, the authors investigate...
Provided by University of Hohenheim
-
Whitepapers
Optimal PMU Placement for Wide-Area Monitoring Using Chemical Reaction Optimization
December 4, 2012, 12:00am PST
The problem of optimal placement of Phasor Measurement Units (PMUs) was first studied using graph theoretic and mathematical programming methods. However, due to the increase of renewable...
Provided by University of Hohenheim
-
Whitepapers
Dynamic Profit Maximization of Cognitive Mobile Virtual Network Operator
December 17, 2012, 12:00am PST
The authors study the profit maximization problem of a cognitive virtual network operator in a dynamic network environment. They consider a downlink OFDM communication system with various network...
Provided by University of Hohenheim
-
Whitepapers
Request-Peer Selection for Load-Balancing in P2P Live Streaming Systems
March 12, 2012, 12:00am PDT
Unlike Peer-To-Peer (P2P) file sharing, P2P live streaming systems have to meet real-time playback constraints, which makes it very challenging yet crucial to maximize the peer uplink bandwidth...
Provided by University of Hohenheim
-
Whitepapers
Energy Efficiency Optimization in Uplink Virtual MIMO Systems
May 24, 2012, 12:00am PDT
Energy-efficient transmission is increasing in importance for wireless system design because of limited battery power in mobile devices. In this paper, the authors consider energy efficiency...
Provided by University of Hohenheim
-
Whitepapers
Epidemic Forwarding in Mobile Social Networks
May 24, 2012, 12:00am PDT
Recent years have witnessed the prosperity of mobile social networks, where various information is shared among mobile users through their opportunistic contacts. To investigate efficiency of...
Provided by University of Hohenheim
-
Whitepapers
Enhancing TCP Performance in IP Fast Reroute
May 24, 2012, 12:00am PDT
IP Fast ReRoute (IPFRR) mechanisms are efficient in providing protection against link or router failure by invoking locally determined backup paths. But in the presence of a transient network...
Provided by University of Hohenheim
-
Whitepapers
Space Information Flow: Multiple Unicast
March 10, 2012, 12:00am PST
The multiple unicast network coding conjecture states that for multiple unicast in an undirected network, network coding is equivalent to routing. Simple and intuitive as it is, the conjecture has...
Provided by University of Hohenheim
-
White Papers
Globalization And Technical Progress: Channels Of Reciprocal Interaction A Literature Review
November 2, 2008, 12:00am PDT
In the center of this paper there are two questions: 'Is it true that globalization is to a crucial degree dependant on technical innovation?' and 'Can globalization be regarded as a determinant...
Provided by University of Hohenheim
-
White Papers
Information Asymmetry In Buyer-Seller Negotiations And Its Impact On Effectiveness, Efficiency And Satisfaction
June 30, 2010, 12:00am PDT
Owing to the increasing need to maximize scarce resources, it is crucial for organizations to perform their negotiations effectively and efficiently. Despite the importance of effectiveness and...
Provided by University of Hohenheim
-
White Papers
An Agent-Based Reverse Pricing Model for Reducing Bullwhip Effect in Supply Chains
October 29, 2007, 12:00am PDT
This paper addresses the problem of increasing order variances in multi-tier supply chains. The majority of current approaches for reducing this problem, namely the bullwhip effect, rely on...
Provided by University of Hohenheim
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